Football score keeper



FIG. 1 is a front elevation of a football score keeper showing my new design;

FIG. 2 is a rear elevation thereof;

FIG. 3 is a bottom plan view thereof; the top plan view being a mirror image thereof; and

FIG. 4 is a right side elevation thereof; the left side elevation being a mirror image thereof. 

The ornamental design for a football score keeper, as shown and described. 